Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quais das redes têm origem em Xalapa?
 ###Tabelas: CREATE TABLE regional_broadcast_television_networks (regional_broadcast_television_networks_id AUTO_INCREMENT PRIMARY KEY, Network VARCHAR, Flagship VARCHAR, Programming VARCHAR, Region VARCHAR, Origin VARCHAR, Owner VARCHAR) CREATE TABLE indian_television_academy_awards (indian_television_academy_awards_id AUTO_INCREMENT PRIMARY KEY, Year INT, Category VARCHAR, Character VARCHAR, For The Show VARCHAR, Result VARCHAR) CREATE TABLE average_scores_of_all_couples (average_scores_of_all_couples_id AUTO_INCREMENT PRIMARY KEY, Rank by average VARCHAR, Place VARCHAR, Perfect 40s VARCHAR, Total VARCHAR, Number of dances VARCHAR, Season VARCHAR, Average VARCHAR) CREATE TABLE captains (captains_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, First captaincy VARCHAR, Games as captain INT, Wins INT, Draws INT, Losses INT) CREATE TABLE top_five_scoring_international_players_tier_3 (top_five_scoring_international_players_tier_3_id AUTO_INCREMENT PRIMARY KEY, Number INT, Player VARCHAR, Years active VARCHAR, Caps INT, Tries INT, Conversions INT, Penalties INT, drop goals INT, Average score INT, Score INT)  
SELECT Network FROM regional_broadcast_television_networks WHERE Origin = Xalapa